Sony KV-27S42 service manual CV Board Transistor CV Board IC Voltage List, CV Board Waveforms

Models: KV-27S42

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C [RGB DRIVE, CRT DRIVE]

(KV-27S42/27S46/27S66/29SL42/29SL42C/29XL42M ONLY)

CV

[RGB DRIVE, VELOCITY MOD.]

(KV-29AL42/29AL42C/29AL66/29AL66C ONLY)

CV BOARD TRANSISTOR

CV BOARD IC

VOLTAGE LIST

VOLTAGE LIST

KV-27S42/27S46/27S66/29AL42/29AL42C/29AL66/29AL66C/ 29SL42/29SL42C/29SL46/29XL42M

E

[ENERGY START]

E BOARD (*) MARK VARIANT LIST

KV-29AL66

C BOARD WAVEFORMS

 

B

C

E

Q943

4.5

8.9

3.7

Q944

2.1

8.9

1.5

Q945

2.1

6.0

1.5

IC1701

pin

volt

1

2.3

2

2.3

KV-29AL66C

KV-29AL42

KV-29AL42C

KV-29SL42

KV-27S42 KV-29SL42C

1

2

3

168.2 Vp-p (H)

140.6 Vp-p (H)

146.5 Vp-p (H)

Q946

133.2

67.1

134.7

Q947

0.9

67.1

0.3

Q965

6.5

8.9

6.2

Q966

6.0

0.0

6.2

All voltages are in V

3

2.3

4

GND

5

3.7

6

203.6

7

129.0

8

126.0

9

127.0

All voltages are in V

 

KV-27S46 KV-29XL42M

REF. NO.

KV-27S66

KV-29SL46

C5020

0.0022MF

0.0047MF

C5021

#

0.0047MF

C5150

0.47MF

#

F5050

6.3A/125V

6.3A/250V

R5350

4.7M

8.2M

T5050

1-431-838-11

1-426-717-11

VDR505

1-803-585-11

1-803-587-11

C BOARD SCHEMATIC DIAGRAM

CV BOARD SCHEMATIC DIAGRAM

C BOARD IC

VOLTAGE LIST

IC1751

pin

volt

1

2.3

2

2.3

3

2.3

4

GND

5

2.3

6

198.1

7

137.3

8

138.6

9

140.8

All voltages are in V

CV BOARD WAVEFORMS

1

2

3

179.7 Vp-p (H)

156.3 Vp-p (H)

167.2 Vp-p (H)

#: NOT MOUNTED

E BOARD TRANSISTOR VOLTAGE LIST

 

B

C

E

 

G

S

D

Q5002

0.4

1.5

0.0

Q5001

1.5

0.1

157.6

All voltages are in V

E BOARD SCHEMATIC DIAGRAM

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3/26/99, 3:45 PM

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Sony KV-27S42 CV Board Transistor CV Board IC Voltage List, CV Board Waveforms, Board Transistor Voltage List

KV-27S42 specifications

The Sony KV-27S42, KV-27S66, and KV-27S46 are notable models within Sony's acclaimed line of Trinitron televisions, which contributed significantly to the brand's reputation for delivering high-quality viewing experiences. These models are characterized by their sturdy construction, vibrant picture quality, and user-friendly features, which made them popular among consumers during their release.

The KV-27S42 model is equipped with Sony's advanced Trinitron technology, offering a flat CRT screen that minimizes glare and enhances color accuracy. With a 27-inch display size, the KV-27S42 is designed to provide an immersive viewing experience without occupying excessive space in the living room. This model also features a variety of input options including composite, S-video, and RF inputs, allowing users to connect multiple devices such as VCRs, DVD players, and gaming consoles effortlessly.

The KV-27S66 model builds upon the strengths of its predecessor with enhancements in audio and video technologies. It features a built-in 2-channel sound system that delivers clear and dynamic audio, complementing the stunning visuals produced by the Trinitron display. The KV-27S66 also includes a digital comb filter, which improves picture sharpness by separating the brightness and color signals, resulting in reduced artifacts and enhanced clarity.

Meanwhile, the KV-27S46 incorporates some of the latest technologies of its time, such as the use of Super Fine Pitch Trinitron technology. This innovation enhances the display's resolution, offering finer detail and more precise color reproduction. The KV-27S46 also supports multiple viewing formats, making it suitable for various video sources, including standard cable and DVDs.

Each of these models is designed with an intuitive on-screen menu that simplifies the navigation of settings, making it easy for users to adjust picture and sound settings to their preferences. Remote control functionality further enhances the user experience, allowing for effortless operation from a distance.

In summary, the Sony KV-27S42, KV-27S66, and KV-27S46 televisions stand out for their historical significance in delivering quality display and audio technologies. With various features that cater to home entertainment needs, these televisions remain a testament to Sony's lasting legacy in the consumer electronics market. While these models may not compete with today's flat-screen technology, they were pioneering products that set the stage for future innovations in television design and performance.